Finding the Fourth Proportional to 96,960.42, 133,803.60 and 53,939.70
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Solution
The fourth proportional to 96,960.42, 133,803.60 and 53,939.70 is: 74,435.80
Step by Step Solution
- Step 1: Write the proportion equation
96,960.42 : 133,803.60 = 53,939.70 : x - Step 2: Convert to fraction form
96,960.42/133,803.60 = 53,939.70/x - Step 3: Cross multiply
96,960.42x = 133,803.60 × 53,939.70 - Step 4: Simplify right side
96,960.42x = 7,217,326,042.92 - Step 5: Solve for x
x = 7,217,326,042.92/96,960.42 - Step 6: Final answer
x = 74,435.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.